Stamp Duty Calculator

If you’re purchasing a buy-to-let property in England or Northern Ireland, it’s essential to understand the current Stamp Duty Land Tax (SDLT) implications. As of April 1, 2025, several changes have been implemented that directly affect property investors.

Updated SDLT Rates for Buy-to-Let Properties (Effective April 1, 2025)

Buy-to-let purchases are subject to standard residential SDLT rates, plus a 5% surcharge for additional properties. This surcharge increased from 3% to 5% on October 31, 2024. 

Purchasing Six or More Properties in One Transaction

If you’re acquiring six or more residential properties in a single transaction, you may benefit from non-residential SDLT rates, which are generally lower than residential rates. This option remains available even after the abolition of Multiple Dwellings Relief (MDR) on June 1, 2024. ​

Calculate Your SDLT Liability

Use our Stamp Duty Calculator to estimate the SDLT payable on your buy-to-let investment. Simply input the purchase price and select the correct options to give an estimated SDLT liability figure.